Since I have had my a3 all money spent on it has gone towards getting the engine running sweet.
In the last 2 months it's had...
New coil packs( free of charge from Audi )
Oil/filter change and new dipstick tube.
Pipercross panel filter.
Bosch maf sensor.
Bosch Super 4 spark plugs.
And the Oil catch can mod with deleted n249/secondary air intake and the egr valve deleted.
Only thing not done is the fuel filter and the Haldex oil but will be done in the next week.
Anyway I just want to know what other sensors/parts on the engine could be cleaned or replaced as I am not sure if there is anymore more I can do servicing wise on these engines. Is there any other parts that could be replaced... parts that fail but do not show on vagcom etc.
Have I missed anything?
I just want it running optimal as can be before I go spending money on coilovers/arb's/wheels/spacers/exhaust.